Mold for making artificial-stone building-blocks.



No. 782,280. PAIBNTED FEB. 14, 1905. J. FINGER.

MOLD POR MAKING ARTIFICIAL STONE BUILDING BLOCKS.

APPLIOATION FILED JULY 1a, 1904.

z sums-SHEET 1.

ttomegs mjngrlnventor b9 v. i

Witnesses PATENTED FEB. I4, 1905.

J. FINGER.

MOLD FOR MAKING ARTIFICIAL STONE BUILDING BLOCKS.

APPLIUATION FILED JULY18, 1904.

2 SHEETS-SHEET 2.

Witnesses ttomegs Unirse STATES Patented February 14, 1905.

ATENT Finca.

MOLD FOR MAKING ARTIFICIAL-STONE BUILDING-BLOCKS.

SPECIFICATION folming part of Letters Patent No. 782,230, dated February 14, 1905.

Application tiled July 18,1904. Serial No. 216.997.

Be it know'n that I. JONAS FINGER, a citizen of the United States, residing' at Fort Collins, in the county of Larimer and State of Colorado` have invented a new and useful Mold for Making' Artilicial-StoneBuilding-Blocks, of which the following' is a specification.

This invention relates to molds for making` artilicial-stone minding-blocks, and has for its object to provide a simple, inexpensive, and durable device of this character by means of which hollow concrete blinding-blocks may he conveniently, rapidly. and cheaply manufacturcd.

A further objectof the invention is to mold the block in two or more sections spaced apart to form air flues or chambers, said sections being' connected together by means of tie-rods or anchors preferably embedded in the cement or other materialduring the formation of the block.

A further object is to provide the mold-box with an adjustable central partition defining a plurality of independent molding' chambers or compartments, said compartments being' provided with removable bed-platesdesig'ned to form the upper sections of the blocks and also support the tierods or anchors in position.

A further object is to provide a knockdown mold-box the end walls of which are removable, so as to permit the same to be readily detached and replaced by others suitable for forming' corner or end blocks.

A still further object of the invention is to provide a removable core member and means carried by said core member for supporting' the tie-rods or anchors preparatory to introducing' the concrete, cement, or other material into the mold-box.

The invention consists in the construction and novel combination and arrangement of parts hereinafter fully described, illustrated in the accompanying drawings, and pointed out in the claims hereto appended, it being understood that various changes in form, proportion, and minor details of construction may be resorted to without departing from the principle or sacrificing' any ofthe advantages of the invention.

ln the accompanying drawings, forming' a part of this specilication, Figure l is a perspective view of a mold-box constructed in accordance with my invention. Fig'. 2 is a longitudinal sectional view taken on the line 2 2 of Fig'. l. Fig'. B isa transversesectional view taken on the line 3 3 of Fig'. l. Fig. #L is a detail perspective view of the removable end wall and sectional bed-plates of one of the molding' chambers or compartments detached. Fig. 5 is a perspective view of a portion of the mold-box,showing' the core member in position for forming corner or end blocks. Fig'. 6 isa transverse section taken on the line e 6 of Fig'. Fig'. T is a detail perspective view of the core member detached. Fig. 8 is a detail perspective view of abuildingblock made by the mold shown in Fig'. 1. Fig'. 9is a similar view of a corner-block formed in the mold illustrated in Fig'. 5.

Similar numerals of reference indicate corresponding parts in all the figures of the drawing's.

The mold-box, which may be formed of wood, metal, or othersuitable material, is preferably of the knockdown type, and consists of the end walls 5 and side walls 6, the former engaging' the terminal flanges T of the side walls,as shown. The end walls 5 are provided with inwardly-projecting ribs or flanges 8, the ends of which are extended to form oppositel\'disposed ears or lugs S), which pass through apertures ll) in the side walls of the box and are provided with slots or perforations for the reception of keys or wedges ll. Disposed within the box and slidably mounted on the ribs or flanges 8 is an adjustable partition l2, and passing' through an opening' in said partition and engaging' the side walls 6 is a threaded rod 13, provided with a nut .14: for adjusting' said rod to clamp the side walls and central portion in position. Interposed between the side walls and the partition l2 are removable plates or auxiliary end walls 15, which divide the box on each side of said partition into two molding' chambers or compartments 16. The plates l5 are of a height equal to the height of the side walls and are provided with oppositely-disposed flanges or ribs 1T, arranged in horizontal allnement with the IOO ribs or iianges on the end walls of the box 5 and adapted in conjunction with said ribs to toms 18. piece for the upper section of the block (shown in Figs 2 and 8 of the drawings) and preferl ably consists of a pair of flat plates, having their adjacent edg'es provided with openings 2O for the reception of tie-rods or anchors 21. The anchors 21 may be formed of wood, metal, or other suitable material and made in any desired shape, said anchors serving to bind or connect the two sections comprising the hollow block.

In making the corner-blocks (shown in Fig. 9) I employ a removable tapering core member 22, consisting of a pair of plates 23, spaced apart by means of wedge-shaped blocks 24, the upper ends of which are inclined or beveled, as indicated at 25. The plates 23 are provided with slots or openings 26 for the reception of the rods 27. the ends of which are preferably bent or curved, so as to cause said rods to be firmly embedded in the cement or other material of which the block is formed. The tie-rods or anchors are held within the slots or openings 26 of the spaced plates 23 by means of supporting-rods 28, said supportposed terminal hooks 29, one of which engages the tie-rod and the other the inclined or beveled face of the spacing-block 24. In molding the corner-blocks it is desirable that the exposed faces of the same should present a smooth exterior surface or finish, and in order to form the block in this manner the end walls 5 of the mold-box are detached and similar walls 30, formed without the inwardly-extending flanges, substituted, as best shown in Fig. 5 of the drawings. Both styles of blocks, however, may be formed with an exterior finish in imitation of chipped rock or other ornamental designs, if desired, by inserting a pattern-plate in the mold-box having the desired design stamped or otherwise imprinted thereon, as will be readily understood.

In molding the blocks (shown in Fig. 8 of the drawings) the mold-box is placed on a table, floor, or other support having a smooth surface and a sufiicient quantity of cement or other material introduced into the molding chamber or compartment to form the lower section of the building-block. The cement is then thoroughly tamped and the plates comprising the false bottom 18 placed in position on the inwardly-extending flanges or ribs, after which the tie-rods or anchors are inserted through the openings in the false bottom and driven into the lower section of the block, as clearly shown in Fig. 2. After the tierods or anchors have been firmly embedded in the lower section of the block the upper section thereof is formed by introducing more cement or concrete and leveling the upper ing-rods being provided with oppositely-dis' surface of the block in the Well-known manner. When the cement has sufficiently set or hardened, the block may be readily removed from the mold-box by removing the keys or wedges and detaching the end walls thereof.

In molding corner-blocks the core member carrying the tie-rods or anchors is placed in the center of the molding chamber or compartment and the cement or other material introduced and thoroughly tamped. The tierods are then released by slipping the supporting-rods 28 off the inclined or beveled ends of the spacing-strips and the core member withdrawn, leaving said tie-rods or anchors firmly embedded in the body of the block.

It is obvious that the mold-box may be divided into any number of molding compartments or chambers, and, if desired, said box may be so arranged as to form but a single block at a time. Blocks of different width and length may be formed by properly adjusting the partition 12 and plates 15, said partition and plates being securely held in adjusted position by tightening the nut on the clamping-rod.

Having thus described the invention, what I claim is- 1. A mold-box for the formation of sectional blocks having' tie-rod connections, and tie-rodsupporting means arranged within the box.

2. mold-box for the formation of sectional blocks having rigid tie-rod connections, and tie-rod-supporting means arranged within the box.

8. A mold-box having its end walls provided with in wardly-extending flanges, and a sectional horizontal partition disposed above the bottom of the box and supported on said fianges.

4. A mold-box having its end walls provided with inwardly-extending fianges, and a removable sectional horizontal partition dis- IOO posed above the bottom of the box and sup- 7. In a mold-box for the formation of sectional blocks having tie-rod connections, a vertical partition dividing the box into a plurality of molding-compartments, a removable end wall arranged within each compartment, and

horizontal partitions supported by the removable end walls and arranged above the bottom of the box, said horizontal partitions serving to support the tie-rods.

8. A knockdown mold-box having its end walls provided with inwardly-extended flanges IIO AIO

forming guides, and a vertical partition arranged within the box and provided with terminal recesses adapted to engage said flanges or guides.

9.- A knockdown mold-box having its end walls provided with inWardly-extended fianges the ends of which are extended to form terminal perforated lugs adapted to engage openings in the side walls ofthe box, and keys or wedges engaging the perforationsin said lugs.

10. A knockdown mold-box having its side Walls provided with terminal laterally-ex-` tended flanges adapted to engage the end walls of the box, a longitudinal partition arranged within the box and engaging the end Walls thereof, a transverse partition disposed on each side of the longitudinal partition, and a clamping-rod passing through the side walls and longitudinal partition for securing the several parts together. l

11. ln a mold-box for the formation of sectional blocks having tie-rod connections, a removable horizontal partition formed in a plurality of sections the adjacent faces of which are provided with alined openings for the reception of the tie-rods.

12. ln a mold-box for the formation of sec tional blocks having tie-rod connections, a removable core member, and tie-rod-supporting means carried b v said core member.

13. In a mold-box for the formation of sectional blocks having' tie-rod connections, a removable core member provided with vertical slots or recesses for the reception of the tierods.

14. ln a mold-box for the formation of sectional blocks havingtie-rod connections, atapcring angularly-disposed core member, and tie-rodsupporting means carried by said core member.

15. In a mold-box for the formation of sectional blocks having tic-rod connections, a

removable core member having its spaced walls provided with alincd slots or recesses for the reception of the tie-rods, spacing-blocks interposed between the walls of the core member and having' their upper ends inclined or beveled,and supporting-bars engaging the tierods and inclined ends of the s[ acingblocks.

In testimony that l claim the foregoing as my own l have hereto allixed my signature in the presence of two witnesses.

JONAS FINGER. \\'itncsses:

F. C. GRABLE, C. GooDRIoH. 

